Mechanical
A manual door closer stores the energy used in the opening of the door in a compression or torsion spring and releases it to close the door. Some closers allow for adjustment of the strength of the spring, making it easier or more difficult to push the door open.
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Norton PR1605H Hold Open Parallel Rigid Arm Aluminum Storefront Tri-Style Door Closer
Norton PR1605H Hold Open Parallel Rigid Arm Aluminum Storefront Tri-Style Door Closer Learn More$137.25
